1. In 1892, Mr. Rudolph designed an engine ……………… diesel engine. A. called B. that called C. which calls D. calling 2. Coal was the first fuel …………………. to power machinery. A. is used B. using C. to use D. to be used 3. Those people ……………… in favor of nuclear power do not want refer A. are B. who are C. to be D. been 4. The dam ………………… back the water suddenly gave way. A. to hold B. hold C. holding D. being held 5. The house ………………. 40 years ago is still in good condition. A. which built B. to build C. built D. building 6. The heat …………………. from the sun is infinite. A. to release B. that is released C. release D. releasing 7. The solar penal ……………….. on the roof of the house can get enough energy for the whole family. A. fixing B. fixed C. to fix D. that is fixing 8. I think China will be the next country ……………….. the Olympic Game. A. will hot B. to host C. host D. hosted 9. Solar power, ……… a potential of alternative sources of energy, is a big question for researchers. A. being B. is C. to be D. which is 10. A hospital for the poor ………………. A billion dollar is going to be built here. A. cost B. costing C. to cost D. which is cost